4028286 has 32 divisors (see below), whose sum is σ = 8663328. Its totient is φ = 1244160.

The previous prime is 4028281. The next prime is 4028287. The reversal of 4028286 is 6828204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7176 + ... + 7716.

It is an arithmetic number, because the mean of its divisors is an integer number (270729).

Almost surely, 2^4028286 is an apocalyptic number.

4028286 is an abundant number, since it is smaller than the sum of its proper divisors (4635042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4028286 is a wasteful number, since it uses less digits than its factorization.

4028286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 4028286 is about 2007.0590424798. The cubic root of 4028286 is about 159.1134035329.

The spelling of 4028286 in words is "four million, twenty-eight thousand, two hundred eighty-six".